Technical data
3
SECTION 2 TECHNICAL DATA
Ref. Condition 15 °C, 1013,25 mbar, dry gas
NOTE: L.P.G. data refer to section 10
2.1 Central heating 16 26
Heat input (gross) 17.7 kW 29 kW
Maximum heat output 60/80°C (return & flow temperature) 15.4 kW 25.3 kW
Maximum heat output 30/50°C (return & flow temperature) 16.8 kW 26.8 kW
Minimum heat output 60/80°C (return & flow temperature) 4.4 kW 7.3 kW
Minimum heat output 30/50°C (return & flow temperature) 4.9 kW 8.1 kW
Minimum working pressure 0.5 bar 0.5 bar
Maximum working pressure 3 bar 3 bar
Minimum flow rate 350 litres per hour 350 litres per hour
2.2 Gas pressure
Inlet pressure (G20) 20.0 mbar 20.0 mbar
Maximum gas rate 1.69 m
3
/h 2.76 m
3
/h
Minimum gas rate 0.49 m
3
/h 0.80 m
3
/h
Injector size single injector with six 3.1 mm holes
single injector with six 3.8 mm holes
2.3 Expansion vessel
Capacity 10 litres 10 litres
Maximum system volume 91 litres (approx.) 91 litres (approx.)
Pre-charge pressure 1.0 bar 1.0 bar
2.4 Dimensions
Height 820 mm 820 mm
Width 450 mm 450 mm
Depth 355 mm 355 mm
Dry weight 53 kg 53 kg
2.5 Clearances
Sides 12 mm 12 mm
Top
150 mm from casing or 25 mm above flue elbow (whichever is applicable)
Bottom 150 mm 150 mm
Front 600 mm 600 mm
2.6 Connections
Flow & return 22 mm compression 22 mm compression
Gas 15 mm compression 15 mm compression
Safety valve 15 mm compression 15 mm compression
2.7 Electrical
Voltage 230V/~ 50hz 230V/~ 50hz
Power consumption 130 W 130 W
Internal fuse F2A F2A
External fuse 3A 3A
2.8 Flue details
Maximum horizontal flue length (concentric) 10.0 metres 6.45metres
Maximum vertical flue length (concentric) 11.0 metres 7.45 metres
Maximum twin flue length (horizontal or vertical) 39 m/39 m + terminal 29 m/29 m + terminal
2.9 Efficiency
SEDBUK rating 90.3% (Band “A”) 90.3% (Band “A”)
2.10 Adjustable operating parameters
PARAMETER MINIMUM MAXIMUM FACTORY SETTING
P. 4 Central heating flow temperature 20 °C 90 °C 75 °C
P. 20 Pump over-run 10 seconds 99 m 10 m
P. 28 Anti-cycle delay 0 seconds 306 seconds 91.8 seconds
2.11 Emissions 16 26
NO
x
Min. output 20 ppm 15 ppm
NO
x
Max. output 40 ppm 30 ppm
CO Min. output 50 ppm 50 ppm
CO Max. output 50 ppm 50 ppm
CO
2
Min. output 9.8% 9.8%
CO
2
Max. output 9.8% 9.8%
CO/CO
2
ratio 0.0005 to 1 0.0005 to 1